Home / 147,651.40-221,325.90-72,656.20

Finding the Fourth Proportional to 147,651.40, 221,325.90 and 72,656.20

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Solution

The fourth proportional to 147,651.40, 221,325.90 and 72,656.20 is: 108,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,651.40 : 221,325.90 = 72,656.20 : x
  2. Step 2: Convert to fraction form
    147,651.40/221,325.90 = 72,656.20/x
  3. Step 3: Cross multiply
    147,651.40x = 221,325.90 × 72,656.20
  4. Step 4: Simplify right side
    147,651.40x = 16,080,698,855.58
  5. Step 5: Solve for x
    x = 16,080,698,855.58/147,651.40
  6. Step 6: Final answer
    x = 108,909.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.